WOYTINSKY, W. S. Seasonal Variations in Employment in the United States. Pp. x, 154. Washington: Committee on Social Security, Social Science Research Council, 1939. $1.50
1939 ◽
Vol 205
(1)
◽
pp. 141-141
1944 ◽
Vol 232
(1)
◽
pp. 214-214
1960 ◽
Vol 54
(4)
◽
pp. 1018-1018
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